Pulse oximetry – a) Locates the isobestic point of hemoglobin and measure oxygen saturationb) Is inaccurate in the presence of fetal hemoglobinc) Is inaccurate in the presence of caboxyhemoglobind) Measures oxygen content

Anaesthesia

Pulse oximetry – a) Locates the isobestic point of hemoglobin and measure oxygen saturationb) Is inaccurate in the presence of fetal hemoglobinc) Is inaccurate in the presence of caboxyhemoglobind) Measures oxygen content

Allergy in immediate perioperative period is due to:

All of the following are true about lumbar puncture except:

Which of these is most commonly used as pre-anesthetic medication?